"Meanwhile, he continued the business of undressing, and at last showed
his chest and arms. As I live, these covered parts of him were checkered
with the same squares as his face; his back, too, was all over the same
dark squares; he seemed to have been in a Thirty Years' War, and just
escaped from it with a sticking-plaster shirt."

Hmmm...might have to be more obvious. I figured the description of one of the characters was a fairly easy target, but then, maybe this isn't as well-read a book as previous choices.

A bit more prose to get the brains churning.

"Some years ago--never mind how long precisely--having
little or no money in my purse, and nothing particular to interest me on
shore, I thought I would sail about a little and see the watery part of
the world."

^Winner. I thought it would be pretty distinct for anyone remembering the story a bit. The second quote is from the second sentence. I wanted to just put the first two sentences, but the first is just too easy.

"I had seen him grow wary at the thought of his family or his religion; now I found I, too, was suspect. He did not fail in love, but he lost his joy of it, for I was no longer part of his solitude. As my intimacy with his family grew I became part of the world which he sought to escape; I became one of the bonds which held him."